Three-beam overwritable magneto-optic disk drive

Akinori Watabe; Ichiro Yamada; Manabu Yamamoto; Kikuji Katoh

doi:10.1117/12.45935

1 July 1991 Three-beam overwritable magneto-optic disk drive

Akinori Watabe, Ichiro Yamada, Manabu Yamamoto, Kikuji Katoh

Proceedings Volume 1499, Optical Data Storage '91; (1991) https://doi.org/10.1117/12.45935
Event: Optical Data Storage, 1991, Colorado Springs, CO, United States

Abstract

A working prototype of a 3-beam overwritable magneto-optic (MO) disk drive with instantaneous read-verification is developed for high-speed file backup. The drive has two optical head and three optical beams so that it can be used with an ISO standard 130-mm diameter MO disk. Write- once optics were applied to the erasing and writing optical systems and high transmission efficiencies were obtained for the laser power in order to achieve 5400 rpm recording.

Citation Download Citation

Akinori Watabe, Ichiro Yamada, Manabu Yamamoto, and Kikuji Katoh "Three-beam overwritable magneto-optic disk drive", Proc. SPIE 1499, Optical Data Storage '91, (1 July 1991); https://doi.org/10.1117/12.45935

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